between appropriability mechanisms, innovation and firm-level productivity. We enrich this model in several ways. First, we … consider different types of innovation spending and study the differences in estimates when innovation spending (rather than R …&D spending) is used to predict innovation in the CDM model. Second, we assume that a firm simultaneously innovates and chooses …

changes in modelling strategy and econometric methodology, over the past twenty years, on estimation of firm-level investment … correction, traditional between- and within-firm estimation versus GMM estimation, the investment behavior of French firms versus … significant improvement in the specification, estimation and interpretation of firm investment equations; we also fin some real …

. However, while we obtain clear evidence that the technological importance or quality of patented innovation mattered for the …

panel dataset of firms that are publicly traded in France, Germany, and Italy. Controlling for either permanent unobserved …&D in France and Germany is remarkably similar both to each other and to that in the US or the UK during the same period In …

decision itself. This paper discusses the likely impact of these patents on innovation. It first reviews the facts about … system and innovation. It concludes by finding some consensus in the literature about the problems associated with this …

The contribution made by innovation and new technologies to economic growth and welfare is largely determined by the … neglected one in the economics of innovation. This chapter, written for a handbook on innovation, provides a historical and …